/**
 * @author Clark
 * @email haixuanwoTxh@gmail.com
 * @date 2021-10-30
 */
#include <stdio.h>

int main(int argc, char *argv[])
{
    float fahr, celsius;
    int lower, upper, step;

    lower = 0;
    upper= 300;
    step = 20;

    fahr = lower;

    while (fahr <= upper){
        celsius = (5.0/9.0) * (fahr - 32.0);
        printf("%3.0f %6.1f\n", fahr, celsius);
        fahr = fahr + step;
    }
    
    return 0;
}

